Have you tried ASOS design hourglass range jeans? They manage to fit on my bum and thighs comfortably while actually being a little snug on my waist. Don't think that's happened before 🤔
I don't know if they sag, today will be the first proper wear, but just thought they might be worth a try. I bought and kept these, and some trousers too.
www.asos.com/asos-design/asos-design-hourglass-high-rise-farleigh-slim-mom-jeans-in-midwash/prd/22031297?clr=midwash&colourWayId=60344380&SearchQuery=asos+design+high+rise+farleigh+%27slim%27+mom+jeans